/Engine/Plugins/Runtime/nDisplay/Source/DisplayCluster/Public/Cluster/IDisplayClusterGenericBarriersClient.h
Synchronize calling thread on a specific barrier with custom data
bool Synchronize ( const [FString](API\Runtime\Core\Containers\FString) & BarrierId, const [FString](API\Runtime\Core\Containers\FString) & UniqueThreadMarker, const [TArray](API\Runtime\Core\Containers\TArray)< uint8 > & RequestData, [TArray](API\Runtime\Core\Containers\TArray)< uint8 > & OutResponseData )